Franchise Fees Receivable - Balance of Franchise Fees Receivable (Details) - Franchise Fees Receivable - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Franchise fees receivable	$ 41,161	$ 40,171
Less: Unamortized discount	(11,041)	(9,518)
Less: Allowance for uncollectible franchise fees	(562)	(303)	$ (181)	$ (149)
Net franchise fees receivable	$ 29,558	$ 30,350